n | a(n) |
---|---|
1 | 0 |
2 | 24 |
3 | 244 |
4 | 958 |
5 | 3330 |
6 | 10474 |
7 | 30808 |
8 | 86860 |
9 | 237624 |
10 | 636256 |
11 | 1676876 |
12 | 4366076 |
13 | 11259114 |
14 | 28808224 |
15 | 73230526 |
16 | 185121918 |
17 | 465742070 |
18 | 1166862594 |
19 | 2912703062 |
20 | 7246920604 |
21 | 17978001450 |
22 | 44482281206 |
23 | 109799225938 |
24 | 270440705450 |
[0,24,244,958,3330,10474,30808,86860,237624, 636256,1676876,4366076,11259114,28808224,73230526, 185121918,465742070,1166862594,2912703062, 7246920604,17978001450,44482281206,109799225938, 270440705450] |